Programmatically Distinguishing Between Multiple Serial Devices of the Same Model

[ltksl]

Can you elaborate on programming the serial number to the devices? I am able to ID the serial numbers for the US232R cables using some of the VIs in the FTDI.zip that you provided in a later post in this thread. There is still a disconnect somewhere between the cables and the devices that are plugged into them. I have ID'd the COM ports of the cables, and know which device they correspond to, but when I try to obtain the serial numbers of my devices in a separate VI (a VI that already existed for the set-up I am working on) I am experiencing an error. Does the name of the COM port need to be changed in NI MAX to the serial number I am getting for the cables?

[K C]

Hi,

The name in MAX is just an alias. This also something I use when I know what is connected (USB ports) to the computer. This way you need the COM port number to connect  to it. But it is not necessary.

In your case finding a port number according the serial number and use that com port should work. Can you post the VI here ?

Kees